1378950 has 48 divisors (see below), whose sum is σ = 3548880. Its totient is φ = 353920.

The previous prime is 1378943. The next prime is 1378957. The reversal of 1378950 is 598731.

It is an interprime number because it is at equal distance from previous prime (1378943) and next prime (1378957).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4192 + ... + 4508.

It is an arithmetic number, because the mean of its divisors is an integer number (73935).

2^1378950 is an apocalyptic number.

1378950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1774440).

1378950 is an abundant number, since it is smaller than the sum of its proper divisors (2169930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1378950 is a wasteful number, since it uses less digits than its factorization.

1378950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1378950 is about 1174.2870177261. The cubic root of 1378950 is about 111.3053841978.

The spelling of 1378950 in words is "one million, three hundred seventy-eight thousand, nine hundred fifty".